HEIDENHAIN ND 1300 CNC Setup - Manual (Page 17)

3
CNC Setup
Normal and fine axis velocity
The normal and fine axis velocities controlled by the joystick are specified by
selecting a Normal or Fine velocity field and entering the desired percentage of
maximum axis velocity. Normal and fine speed control is assigned to a joystick
button in the Buttons setup screen.
Exponential (Expo%) joystick motion control
The axis velocity controlled by the joystick is changed from linear to varying degrees of exponential by
entering values into the axis Expo% fields. Expo % values are entered from 0 (linear) to 100 (very expo-
nential. Two examples and a graph are shown below.
Linear example (Expo % = 0): For each percent of Joystick displacement, the axis velocity
increases a percent:
When the joystick is at 50%, the axis velocity is 50%
When the joystick is at 80%, the axis velocity is 80%
When the joystick is at 100%, the axis velocity is 100%
Nonlinear example (Expo % = 60): At first, increased Joystick displacements do not cause the axis
velocity to increase much, but then as the Joystick displacement
continues to increase, the axis velocity increases at a higher
and higher rates:
When the joystick is at 50%, the axis velocity is 20%
When the joystick is at 80%, the axis velocity is 25%
When the joystick is at 100%, the axis velocity is 100%
Select an axis Expo % field and
enter the desired value.
Joystick Setup and Calibration